May 22, 2011 by staff
Grimsvotn Volcano, Grimsvotn, Iceland, the most active volcano began its latest eruption on Saturday and has led to closure of some air travel in the country, just one year after the massive Eyjafjallaj? Kull volcano eruption created the chaos of air transport throughout Europe. Icelandic Meteorological Office (IMO) has issued a warning about the eruption of the volcano, indicating the activity began on Saturday as subglacial eruptions that quickly broke the ice and 9 pm the eruption plume reached more than 65,000 feet altitude.
Isavia, the company responsible for air traffic in Iceland, said the closure of airspace was a standard procedure. “The plume has reached the altitude jet flight and have made plans for aircraft flying through space Icelandic air control southwardly fly tonight,” said Hjordis Gudmundsdottir, a spokesman for the company, reports AP.
The Grimsvotn volcano, the largest and most active, is below the huge Vatnaj Iceland? Kull ice in the southeastern part of the country. Scientists had been expecting a rash of Grimsvotn and the history of the volcano shows before the eruptions have not had a major impact on air traffic.
Last volcanic eruption in Iceland is believed to be a minor event compared to last year Eyjafjallaj? Kull. “It can be a big eruption, but is unlikely to be like last year,” said Hjorleifur Sveinbjornsson, a geologist at the IMO, as the BBC.
The Eyjafjallaj? Kull eruption in April 2010 year created the last air traffic chaos, affecting about 10 million passengers that Europe experienced its highest close airspace since the Second World War.
Shortly after the main stops of the airspace, based partly on fears of volcanic ash being sucked into jet engines, critics say the closure is based on over reaction, but a study published in April shows that authorities took the right decision.
“The aviation authorities made the right decision,” said Susan Stipp, a geoscientist at the University of Copenhagen, reports Wired. Results of the study team were published in the April 25 issue of Proceedings of the National Academy of Sciences.
The study found that volcanic ash particles retain their sharp, jagged edges, even after two weeks of washing experiment. “The particles remain extremely sharp, even after being corrected with each other,” said Stipp.
Grimsvotn last erupted in November 2004. Its composition differs from Eyjafjallaj ashes? Kull of fine-grained volcanic ash to be thicker, making it fall to the ground faster than the eruption kull Eyjafjallaj?
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